Swamped

The roost is probably the safest option. The front door is sure to be guarded, and the floodgates are likely still closed.

The roost, though - it only needs to be protected from you, so there's a chance nobody's caught on and you can get there safely. The only question is how to find it...

Oh. Of course. You've been making crow sounds all day, all you need to do is listen for some real ones.

You crawl around until you hear some noisy crows. Unfortunately, it seems they're up high; the roost must be above ground level. That's inconvenient; you don't think you can climb the inner walls too well, which means you'll have to risk surfacing.

Well, one thing at a time. You open up another hole so you can better hear if anyone's coming. Unfortunately, you're hearing quite a lot of footsteps nearby. Whatever was going on outside must have been settled, and the base is slowly filling back up.

So, now what are you going to do?